Question

a block of mass m is placed on a smooth horizontal surface connected by spring of spring constant 'k' is pulled by constant force 'F'. Maximum velocity of block is when elongation in spring is.............​

Answer 1

ANSWER

Maximum speed is at mean position(equilibrium). F=kx

x=

k

F

W

F

+W

sp

=ΔKE

F(x)−

2

1

kx

2

=

2

1

mv

2

−0

F(

k

F

)−

2

1

k(

k

F

)

2

=

2

1

mv

2

⇒V

max

=

mk

F